diff --git a/src/MNH/lima_droplets_accretion.f90 b/src/MNH/lima_droplets_accretion.f90
index f7e518b647e0d83a32aa283fe810e7c53de6772c..c7a4232fdaf6fc57a7051f15d3c2c6e58afea091 100644
--- a/src/MNH/lima_droplets_accretion.f90
+++ b/src/MNH/lima_droplets_accretion.f90
@@ -133,7 +133,7 @@ ELSE IF (NMOM_C.EQ.1 .AND. NMOM_R.EQ.1) THEN
    GACCR(:) = PRRT(:)>XRTMIN(3) .AND. &
               PRCT(:)>XRTMIN(2)
    WHERE ( GACCR(:) )
-      P_RC_ACCR(:) = XFCACCR * PRCT(:)      &
+      P_RC_ACCR(:) = - XFCACCR * PRCT(:)    &
                    * PLBDR(:)**XEXCACCR     &
                    * PRHODREF(:)**(-XCEXVT)
    END WHERE